GENETICS | My Journey In Science 4

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Today we discussed about Genetics. But before we start our meeting, our teacher asked us if we have tackled about Genetics since we're on 8th Grade. Unfortunately, we haven't discussed about it before.  He said that it's going to be hard to us because we don't have any background about Genetics. 




Chromosomes


We first discussed about Chromosomes. The carriers of Genes. As shown on the picture, Chromosomes has different parts and types. There are Centromere, the circle-shaped in the center, Short Arm also called as P arm, and Long Arm or also called as Q arm. 

There are four types of chromosomes: metacentric,
submetacentric, acrocentric, and telocentric. You can see the difference of each other with the placement of the centromere. First one is in the middle, the second got little up, next is near the tip, and lastly is in the tip of the Chromosome.

Karyotype





Karyotype is an actual picture of the chromosomes from one cell that has been stained and magnified 1000X. There are 46 chromosomes are arranged in pairs (23 pairs). Twenty- two pairs constitute the homologous autosomes that are divided into seven groups: A to G. 


Gregor Mendel


Gregor Johann Mendel served as the foundations of the modern principles of genetics, which earned him the title of "Father of Heredity". 







Punnett Square


The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. 













That's it for today.  We didn't finished our lesson because it's too long for us to take it. So we decided to continue it next week. It is something that I am interested to learn more about genetics.

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